class Dict(dict):
	'''
	Simple dict but also support access as x.y style.
	
	>>> d1 = Dict()
	>>> d1['x'] = 100
	>>> d1.x
	100
	>>> d1.y = 200
	>>> d1['y']
	200
	>>> d2 = Dict(a=1, b=2, c='3')
	>>> d2.c
	'3'
	>>> d2['empty']
	Traceback (most recent call last):
		...
	KeyError: 'empty'
	>>> d2.empty
	Traceback (most recent call last):
		...
	AttributeError:'Dict' object has no attribute 'empty'
	'''
	
	def __init__(self, **kw):
		super(Dict, self).__init__(**kw)
		
	def __getattr__(self, key):
        try:
            return self[key]
        except KeyError:
            raise AttributeError(r"'Dict' object has no attribute '%s'" % key)

    def __setattr__(self, key, value):
        self[key] = value
		
if __name__=='__main__':
    import doctest
    doctest.testmod()